This paper presents the Hilbert-Huang Transform (HHT) with Empirical Mode Decomposition (EMD), which is an opportune method to analyse non-stationary traces of nonlinear waves, with freak waves as a case in point. Comparison to conventional methods such as the Fourier, Wavelet and Stockwell Transform is undertaken. Furthermore, an investigation of different EMD schemes (Ensemble EMD or Smoothed EMD) is undertaken to improve the interpretability of the results. Ultimately the Draupner New Year Wave is examined by using the HHT. After all, on successfully applying the HHT, a new perspective on analysing waves is suggested.
Investigating the Use of the Hilbert-Huang Transform for the Analysis of Freak Waves
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Maris, J, Christou, M, & Huijsmans, R. "Investigating the Use of the Hilbert-Huang Transform for the Analysis of Freak Waves." Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. Volume 2: Structures, Safety and Reliability. Rio de Janeiro, Brazil. July 1–6, 2012. pp. 309-320. ASME. https://doi.org/10.1115/OMAE2012-83569
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